Electronic cigarette

ABSTRACT

An electronic cigarette, comprising a tube body, a suction nozzle cover, an oil-absorbing cotton and a supporting tube received in the tube body, the supporting tube defines a center hole therein, the suction nozzle cover includes a cover cap and a cover body, the cover cap defines at least one smoking hole(s), the axial projection on the cover cap of the smoking hole(s) partially overlaps or is separated from the axial projection on the cover cap of the center hole of the supporting tube, which makes the smoke flowing through the center hole of the supporting tube to turn flow direction and is exhausted from the smoking hole(s) for users to imbibe. So that smoke oil particles fixed in the smoke is obstructed inside the electronic cigarette effectively, users are prevented from imbibition of smoke oil particles, smoking taste and user experience are improved accordingly.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Patent ApplicationNo. PCT/CN2013/072769, with an international filing date of Mar. 15,2013, designating the United States, now pending. The contents of thesespecifications are incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to the field of electronic heatingproducts, and more particularly, to a type of electronic cigarette.

BACKGROUND OF THE INVENTION

Because domestic publicity of anti-smoking is intensified and thepeople's awareness of health are enhanced, electronic cigarettes, whichserve as the substitute of traditional tobacco, have been more and morewidely used. An existing electronic cigarette is comprised of acigarette rod and a cigarette holder fixed together. The cigarette rodincludes a battery therein, the cigarette holder includes an atomizationdevice received therein, and the atomization device is electricallyconnected to cigarette rod. The cigarette holder further includes an oilcup received therein for accommodating tobacco juice. When a user startto smoke via the cigarette holder, the tobacco juice flows into theatomization device slowly, and an atomization wire of the atomizerabsorbs the tobacco juice. A control circuit board detects electriccurrent and controls the heating device positioned adjacent to theatomization wire to atomize the tobacco juice and generate smoke, andthe smoke flows through the suction nozzle cover and is inhaled byusers.

In the prior art, a smoke hole of electronic cigarette is generallydefined in a center of a suction nozzle cover, when a user uses theelectronic cigarette, the user may often imbibe smoke oil particles,which may cause the user to feel uncomfortable.

SUMMARY OF THE INVENTION

Aiming at aforementioned drawbacks in the prior art including the easilyimbibing of tobacco tar particles in case of using the electroniccigarette, the objective of the present invention is to provide anelectronic cigarette which is able to obstruct smoke oil particlestherein.

The technical solution of the present invention is implemented byproviding a type of electronic cigarette which comprises a tube body, asuction nozzle cover, an oil-absorbing cotton and a supporting tubereceived inside the tube body, the oil-absorbing cotton covered on anouter surface of the supporting tube, a center hole defined in thesupporting tube and configured to guide smoke, wherein, the suctionnozzle cover comprises a cover cap covered on the tube body and a coverbody extending along a bottom surface of the cover cap and inserted intothe tube body, the cover cap defines at least one smoking hole(s)therein, an axial projection on the cover cap of the smoking hole isseparated from or partially overlaps with an axial projection on thecover cap of the center hole of the supporting tube, and the smokeflowing through the center hole of the supporting tube is forced to turnand is exhausted from the smoking hole for users to inhale.

In the electronic cigarette of the present invention, the smoke outletextends inwards the cover body along the cover cap, and the smoke holeis a through hole.

In the electronic cigarette of the present invention, an axialprojection on the cover cap of the center hole of the supporting tube isdefined as a projection area on the cove cap of the center hole of thesupporting tube, the smoking hole(s) is/are defined in an opening areaformed between the peripheral edge of the projection area and theexterior edge of the cover cap, and the axial projection of the smokinghole is separated from the axial projection on the cover cap of thecenter hole of the supporting tube.

In the electronic cigarette of the present invention, the opening areaof the cover cap defines at least two smoking holes, and the smokingholes are all separated from each other.

In the electronic cigarette of the present invention, the smokinghole(s) are all separated from each other and are positionedequidistantly in a same radial direction of the cover cap.

In the electronic cigarette of the present invention, a total crosssectional area of parts of the smoking holes located on an outer surfaceof the cover cap is ranged from two square millimeter to six squaremillimeter.

In the electronic cigarette of the present invention, shapes of thesmoking holes includes at least one of circular, polygon and ellipse.

In the electronic cigarette of the present invention, the cover cap andthe cover body are formed integrally.

In the electronic cigarette of the present invention, each smoke hole isa straight hole.

In the electronic cigarette of the present invention, each smoke hole isan inclined hole.

In the electronic cigarette of the present invention, each smoking holecorresponds to the oil-absorbing cotton.

In the electronic cigarette of the present invention, the cover capdefines at least two inclined holes therein, and all of the inclinedholes have a same angle of inclination relative to a centre line of thecover cap.

In the electronic cigarette of the present invention, the angles ofinclination relative to the centre line of the cover cap of each of theinclined holes is ranged from twenty degrees to forty degrees.

In the electronic cigarette of the present invention, the cover bodyincludes bulge(s) formed thereon, the tube body defines slot(s)corresponding to the bulge(s) therein, and the bulge(s) and the slot(s)form clip connection(s).

In the electronic cigarette of the present invention, the cover bodydefines slot(s) therein, the tube body includes bulge(s) correspondingto the slot(s) thereon, the slot(s) and the bulge(s) form clipconnection(s).

When implementing the electronic cigarette of the present invention, thefollowing advantageous effects can be achieved: in the electroniccigarette of the present invention, as an axial projection on the covercap of the smoking hole only partially overlaps with or is serrated froman axial projection on the cover cap of the center hole of thesupporting tube, a flow direction of the atomized smoke needs to bechanged, so that the smoke can be exhausted via the suction nozzlecover. At the same time, the smoke oil particles fixed in the smoke isunable to deviate from the original flow direction of the smoke and isobstructed inside the electronic cigarette effectively. In this way,users avoid from imbibing the smoke oil, and smoking taste and userexperience are improved accordingly.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention and technical solution will be illustrated with referenceto accompanying drawings in the following. In the figures:

FIG. 1 is a partial cutaway view of the electronic cigarette inaccordance with an embodiment of the present invention;

FIG. 2 is a structurally schematic view of the suction nozzle cover inaccordance with a first embodiment of the present invention;

FIG. 3 is a schematic view of the suction nozzle cover shown along theorientation A of FIG. 2;

FIG. 4 is a structurally schematic view of the suction nozzle cover inaccordance with a second embodiment of the present invention;

FIG. 5 is a schematic view of the suction nozzle cover shown along theorientation B of FIG. 4;

FIG. 6 is a partial cutaway view of the one-off atomization device inaccordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Specific implementations of the present invention is explained in detailin accordance with accompanying drawings so that the technical feature,objective and effect of the present invention can be understood moreclearly.

As shown in FIG. 1, an electronic cigarette is illustrated in accordancewith a preferred embodiment of the present invention, the electroniccigarette comprises a tube body 10, a suction nozzle cover 20, asupporting tube 30, and an oil-absorbing cotton 40. Wherein, the tubebody 10 is approximately a hollow and cylinder-shaped structure andreceives the suction nozzle cover 20, the supporting tube 30 and theoil-absorbing cotton 40 therein. The heating component passes throughthe through-hole of the supporting tube 30 traversely and is fixedinside the supporting tube 30, the oil-absorbing cotton 40 envelops anouter surface of the supporting tube 30, and a center hole configuredfor allowing smoke to flow in the electronic cigarette is defined in thesupporting tube 30.

The suction nozzle cover 20 is approximately a hollow andcylinder-shaped structure, and is made of silica gel material and hasexcellent characteristics such as elasticity and corrosion resistance.It is understood that the suction nozzle cover 20 can also be made offlexible materials such as rubber.

The suction nozzle cover 20 comprises a cover cap 210 and a cover body220. The cover body 220 extends along a bottom surface of the cover cap210 and is sleeved in the tube body 10, the cover cap 210 covers the topof the tube body 10 so that the whole electronic cigarette is sealed up.The cover cap 210 and the cover body 220 of the suction nozzle cover 20are formed integrally, and the integrated structure of the cover cap 210and the cover body 220 is easy to process and excellent in an integrityeffect.

For preventing the suction nozzle cover 20 from being ejected out of thetube body 10 and even being swallowed by users that are smoking, thesuction nozzle cover 20 and the tube body 10 are set to establish a clipconnection. A lateral wall of the cover body 220 includes one or aplurality of convex-shaped buckle(s) formed thereon (not shown),correspondingly, an inner wall of the tube body 10 defines slot(s)configured to establish the clip connection with the buckle(s). By theclip connection between the buckle(s) and the slot(s), the suctionnozzle cover 20 is detachably mounted on a top of the tube body 10. Insome other embodiments, it is understand that the latter wall of thecover body 220 defines the slot(s) therein (not shown), and the innerwall of the tube body 10 includes the buckle(s) formed thereon (notshown). By the clip connection between the slot(s) and the buckle(s),the tube body 10 and the suction nozzle cover 20 are detachablyconnected together.

As shown in FIG. 2, FIG. 3 and FIG. 4, the cover cap 210 defines atleast one smoking hole(s) 212, the axial projection on the cover cap 210of the smoking hole(s) 212 is separated from or partially overlaps withthe axial projection on the cover cap 210 of the center hole of thesupporting tube 30. Thus, the atomized smoke flowing into the smokinghole(s) 212 is unable to directly enter the smoking hole(s) 212 definedin the cover cap 210 via the center hole of the supporting tube 30, andneeds to deviate from the original flow direction, so that the atomizedsmoke can enter the smoking hole(s) 212 and be exhausted to be inhaledby users. Smoke oil particles fixed in the smoke, which are unable toredirect the flow direction, are obstructed inside the electroniccigarette effectively, so that the amount of the smoke oil inhaled byusers is reduced effectively, and user experience is improved. Withrespect to the embodiment of the present invention, the smoking hole(s)212 extend(s) inwards the cover body 220 along the cover cap 210, andthe smoking hole(s) 212 is (are) through-hole(s). The cover cap 210defines two cylinder-shaped smoking holes 212 therein in the embodimentof the present invention, and the two cylinder-shaped smoking holes 212are unspaced. A depth of each of the smoking holes 212 is greater than athickness of the cover cap 210. Understandably, the depth of each of thesmoking holes 212 can also be equal to or less than the thickness of thecover cap 210. When the depth of each of the smoking holes 212 is lessthan the thickness of the cover cap 210, the smoking holes 212 is agroove recessing inwards the cover cap 210. When a depth of each of thesmoking holes 212 is equal to the thickness of the cover cap 210, thesmoking hole(s) 212 pass(es) through the whole cover cap 210. The shapesof the smoking holes 210 includes at least one of triangle, polygon andellipse, and the shapes of the polygon can include pentagon and hexagonand so on. Furthermore, there is no limitation to the number of thesmoking holes 212 mentioned above, one or more smoking hole(s) 212 canbe defined in the cover cap 210 in the embodiment of the presentinvention. Less smoke flow will be generated inside the electroniccigarette when the number of the smoking holes 212 is less, and moresmoke flow will be generated when the number of the smoking holes 212 islarger.

The axial projection on the cover cap 210 of the center hole of thesupporting tube 30 is defined as a projection area on the cover cap 210of the center hole of the supporting tube 30, and the area formedbetween the peripheral edge of the projection area and the exterior edgeof the cover cap 210 is defined as an opening area. When a part of thesmoking holes 212 are located in the opening area, the axial projectionon the cover cap 210 of the smoking holes 212 partially overlaps withthe axial projection on the cover cap 210 of the center hole of thesupporting tube 30. When the whole smoking holes 212 are located in theopening area, the axial projection on the cover cap 210 of the smokingholes 212 is separated from the axial projection on the cover cap 210 ofthe center hole of the supporting tube 30. Compared with the partialoverlap case, when the axial projection on the cover cap 210 of thesmoking holes 212 is separated from the axial projection on the covercap 210 of the center hole of the supporting tube 30, the atomized smokeneeds to turn a larger angle, so that the smoke can enter the smokingholes 212 and be inhaled by users. The smoke particles fixed in thesmoke are unable to be exhausted from the smoking holes 212 because oftheir inability of deviating from the original flow direction, as aresult, users are prevented from imbibing the smoke oil particleseffectively, and the smoking taste is improved. Therefore, the smokingeffect under the circumstance of total separation is better than thesmoking effect under the circumstance of partial overlap in regard tothe axial projection mentioned above.

When the cover cap 210 defines at least two smoking holes 212, thesmoking holes 212 can be separated from each other. Particularly, thesmoking holes 212 can be separated from each other equidistantly or notequidistantly. One lateral of the cover cap 210 that is adjacent to thecover body 220 is defined as an inner surface of the cover cap 210, andthe other lateral of the cover cap 210 that is away from the cover body220 is defined as an outer surface of the cover cap 210. A total crosssectional area of all of the smoking holes 212 is ranged from two squaremillimeters to six square millimeters. If the total cross sectional areais less than two square millimeters, the smoke may be obstructed andaccumulated inside the electronic cigarette, which may cause damage tothe electronic cigarette. If the total cross sectional area is more thansix square millimeters, a large quantity of smoke flow will begenerated, which may adversely affect the smoking taste.Correspondingly, a diameter of an opening of each smoking hole 212formed in the outer surface of the cover cap 212 should be ranged from0.3 millimeter to 1.4 millimeters.

It is understand that the smoking holes 212 can also be unspaced fromeach other. It is preferred that all of the smoking holes 212 can alsobe defined in the opening area and positioned in a same radial directionof the cover cap 210, so that a circular loop convenient for smoke flowis formed accordingly.

As shown in FIG. 2 and FIG. 3, in a first embodiment of the presentinvention, two smoking holes 212 are defined, and each smoking hole 212is a straight hole. A diameter of each of the two smoking holes 212 is0.85 millimeter. The two smoking holes 212 are unspaced from each otherand form a figure-8 shape.

As shown in FIG. 4 and FIG. 5, in a second embodiment of the presentinvention, two smoking holes 212 are defined, and each of the twosmoking holes 212 is an inclined hole. The two smoking holes 212 areunspaced from each other and form a figure-8 shape. Preferably, when twoor more smoking holes 212 are defined, each of the smoking holes 212 hasa same inclined angle ranging from twenty degrees to forty degreesrelative to the center line of the cover cap 210. The inclined angle isthirty degrees in this embodiment of the present invention.

The smoking holes 212 incline obliquely and downward from the cover cap210 to the cover body 220, and each of the smoking holes 212 correspondsto the oil-absorbing cotton 40, which makes the smoking holes 212 beseparated from the center hole of the supporting tube 30 completely. Inthis way, smoke in the center hole of the supporting tube 30 needs todeviate from an original flow direction and turn toward the orientationof the inclined holes, the smoke can enter the smoking holes 212 and beinhaled by users. Smoke oil particles fixed in the smoke are unable tochange original flow direction, and is unable to enter the smoking holes212, so that users are prevented from imbibition of the smoke oilparticles effectively. It is understand that the part of each of thesmoking holes 212 that is away from the center hole of the supportingtube 30 can be defined anywhere of the cover cap 210, and theeffectiveness of the present invention won't be adversely affected.

The two embodiments mentioned above are merely demonstration instead oflimitation, there are some other options in regard to the number, theshape and the connection relationship of the smoking holes 212.

In the electronic cigarette of the present invention, as the axialprojection on the cover cap 210 of the smoking holes 212 partiallyoverlaps with or is separated from the axial projection on the cover cap210 of the center hole of the supporting tube 30, the atomized smokeneeds to deviate from an original flow direction to some extent, so thatthe smoke is enabled to be exhausted from the suction nozzle cover 20.Smoke particles fixed in the smoke is unable to change the flowdirection, and is obstructed inside the electronic cigaretteeffectively. Thus users are prevented from imbibing smoke oil particles,and the smoking taste and user experience are improved as well.

As shown in FIG. 6, a type of one-off atomization device is provided inthe present invention, which comprises a tube body 610, a suction nozzlecover 620 and a supporting tube 630. The suction nozzle 620 defines atleast one smoking hole(s) 622, and the smoking hole(s) 622 may be anyone of the above-mentioned smoking hole(s) 212.

The embodiments of the present invention are described according to theaccompanying figures, however, the present invention shall not belimited to the above-mentioned embodiments which are only considered assome demonstrations instead of limitation to the present invention. Lotsof modalities can be made by the one skilled in the art with the help ofthe inspiration from the present invention without breaking away fromthe principle and scope of protection of the claims, wherein thesemodalities are within the scope protected by the present invention.

1. An electronic cigarette, comprising: a tube body, a suction nozzlecover, an oil-absorbing cotton and a supporting tube received inside thetube body, the oil-absorbing cotton covered on an outer surface of thesupporting tube, a center hole defined in the supporting tube andconfigured to guide smoke, wherein, the suction nozzle cover comprises acover cap covered on the tube body and a cover body extending along abottom surface of the cover cap and inserted into the tube body, thecover cap defines at least one smoking hole(s) therein, an axialprojection on the cover cap of the smoking hole is separated from orpartially overlaps with an axial projection on the cover cap of thecenter hole of the supporting tube, and the smoke flowing through thecenter hole of the supporting tube is forced to turn and is exhaustedfrom the smoking hole for users to inhale.
 2. According to theelectronic cigarette of claim 1, wherein, the smoke outlet extendsinwards the cover body along the cover cap, and the smoke hole is athrough hole.
 3. According to the electronic cigarette of claim 2,wherein, an axial projection on the cover cap of the center hole of thesupporting tube is defined as a projection area on the cove cap of thecenter hole of the supporting tube, the smoking hole(s) is/are definedin an opening area formed between the peripheral edge of the projectionarea and the exterior edge of the cover cap, and the axial projection ofthe smoking hole is separated from the axial projection on the cover capof the center hole of the supporting tube.
 4. According to theelectronic cigarette of claim 3, wherein, the opening area of the covercap defines at least two smoking holes, and the smoking holes are allseparated from each other.
 5. According to the electronic cigarette ofclaim 4, wherein, the smoking hole(s) are all separated from each otherand are positioned equidistantly in a same radial direction of the covercap.
 6. According to the electronic cigarette of claim 4, wherein, atotal cross sectional area of parts of the smoking holes located on anouter surface of the cover cap is ranged from two square millimeter tosix square millimeter.
 7. According to the electronic cigarette of claim1, wherein, shapes of the smoking holes includes at least one ofcircular, polygon and ellipse.
 8. According to the electronic cigaretteof claim 1, wherein, the cover cap and the cover body are formedintegrally.
 9. According to the electronic cigarette of claim 1,wherein, each smoke hole is a straight hole.
 10. According to theelectronic cigarette of claim 1, wherein, each smoke hole is an inclinedhole.
 11. According to the electronic cigarette of claim 10, wherein,each smoking hole corresponds to the oil-absorbing cotton.
 12. Accordingto the electronic cigarette of claim 10, wherein, the cover cap definesat least two inclined holes therein, and all of the inclined holes havea same angle of inclination relative to a centre line of the cover cap.13. According to the electronic cigarette of claim 11, wherein, theangles of inclination relative to the centre line of the cover cap ofeach of the inclined holes is ranged from twenty degrees to fortydegrees.
 14. According to the electronic cigarette of claim 1, wherein,the cover body includes bulge(s) formed thereon, the tube body definesslot(s) corresponding to the bulge(s) therein, and the bulge(s) and theslot(s) form clip connection(s).
 15. According to the electroniccigarette of claim 1, wherein, the cover body defines slot(s) therein,the tube body includes bulge(s) corresponding to the slot(s) thereon,the slot(s) and the bulge(s) form clip connection(s).